A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU134874" target="_blank" >RIV/00216305:26110/19:PU134874 - isvavai.cz</a>

Výsledek na webu

<a href="http://tces.vsb.cz/Home/CurrentIssue" target="_blank" >http://tces.vsb.cz/Home/CurrentIssue</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.35181/tces-2019-0017" target="_blank" >10.35181/tces-2019-0017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation

Popis výsledku v původním jazyce

A numerical parametric study of the crack propagation under various level of mixed-mode condtions is evaluated. By focusing of the Linear Elastic Fracture Mechanics, the model with concrete input data of Brazilian Disc Test with a central notch is considered and its analysis with defined radius R, force P and material properties is performed. The results are obtained by varying the length an of the central notch and its angle of inclination α with respect to the horizontal axis. The crack growth direction is estimated through three different criteria: the maximum tangential stress criterion, the strain energy density criterion and the crack tip displacement criterion. This study involves the classical single-parameter fracture mechanics concept, in which the stress distribution in a cracked specimen is described by the stress intensity factors. The Williams solution of the crack-tip stress and displacement fields are taken into account. As a comparison, the solution is also provided with J-Integral. The model is created with the finite element method software ANSYS. Lastly, the suggested crack paths obtained by criteria are compared with experimental data.

Název v anglickém jazyce

A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation

Popis výsledku anglicky

A numerical parametric study of the crack propagation under various level of mixed-mode condtions is evaluated. By focusing of the Linear Elastic Fracture Mechanics, the model with concrete input data of Brazilian Disc Test with a central notch is considered and its analysis with defined radius R, force P and material properties is performed. The results are obtained by varying the length an of the central notch and its angle of inclination α with respect to the horizontal axis. The crack growth direction is estimated through three different criteria: the maximum tangential stress criterion, the strain energy density criterion and the crack tip displacement criterion. This study involves the classical single-parameter fracture mechanics concept, in which the stress distribution in a cracked specimen is described by the stress intensity factors. The Williams solution of the crack-tip stress and displacement fields are taken into account. As a comparison, the solution is also provided with J-Integral. The model is created with the finite element method software ANSYS. Lastly, the suggested crack paths obtained by criteria are compared with experimental data.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sborník vědeckých prací Vysoké školy báňské – Technické univerzity Ostrava

ISSN

1213-1962

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

33-38

Kód UT WoS článku

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EID výsledku v databázi Scopus

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